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-   -   Amplifier Utilizing Two-Stage-Included Local Negative (http://www.diyaudio.com/forums/pass-labs/170952-amplifier-utilizing-two-stage-included-local-negative.html)

Melon Head 28th July 2010 01:27 PM

Amplifier Utilizing Two-Stage-Included Local Negative
 
I came across this today, Low Cost High Performance Power Amplifier Utilizing Two-Stage-Included Local Negative Feedback with Feedback-Shifting Technology and I am wondering whether I should quickly forget about it or whether it would be worth implemeting in a simple class A circuit.
Any comments positive or negative are welcome.

eLarson 28th July 2010 02:15 PM

Quote:

Originally Posted by thanh1973 (Post 2256152)
I came across this today, Low Cost High Performance Power Amplifier Utilizing Two-Stage-Included Local Negative Feedback with Feedback-Shifting Technology and I am wondering whether I should quickly forget about it or whether it would be worth implemeting in a simple class A circuit.
Any comments positive or negative are welcome.

Fig. 10 shows (if my eyes aren't playing tricks on me) N-JFETs where I suspect he meant P-JFETs.

StevenOH 28th July 2010 02:17 PM

1 Attachment(s)
I wonder, what will Graham Maynard say about that:rolleyes:
The GEM.

mlloyd1 30th July 2010 07:17 PM

the block diagram in the patent made me think about the old nested feedback loop designs.

mlloyd1


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